Fig 2.

Correlations of circulating TFH cells with ICOS^high and PD-1^high expression in ITP patients. (A, D, G): Relationship among the percentages of CXCR5⁺CD4⁺TFH, ICOS^high CXCR5⁺CD4⁺TFH, and PD-1^high CXCR5⁺CD4⁺TFH cells in HC; (B, E, H): Relationship among the percentages of CXCR5⁺CD4⁺TFH, ICOS^high CXCR5⁺CD4⁺TFH, and PD-1^high CXCR5⁺CD4⁺TFH cells in ITP (-); (C, F, I): Relationship among the percentages of CXCR5⁺CD4⁺TFH, ICOS^high CXCR5⁺CD4⁺TFH, and PD-1^high CXCR5⁺CD4⁺TFH cells in ITP (+) patients.